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nitrite concentrations from 50 metres to the bottom. The remaining nutrients, pH, oxygen and salinity were normal. The Skagerrak Surface water temperatures were below normal in almost all the investigated area. They varied between 1.3 (Släggö) and 3.4°C (P2). Surface salinities were relatively low and Last updated: Apr 23, 2014

. It influences the aquatic light field substantially. A quantitative description of the dynamics and variability is often required to predict accurately light penetration and hereafter e.g. primary production. The present study is a first attempt to include CDOM into a Baltic Sea model. The model Last updated: Apr 23, 2014

temperature was normal throughout most of the area. Water below the halocline in the Arkona Basin was well oxygenated with levels of ca. 6 ml/l. Water was flowing in at the bottom in the western part of the Bornholm Basin and in the south of the eastern Gotland Basin, giving oxygen concentrations above 3 ml Last updated: Apr 23, 2014

Surface water temperatures and nutrient levels were normal in the whole area. Oxygen levels in the bottom water of the Arkona Basin were good. At BY4 (Christiansö) in the Bornholm Basin new water, with an oxygen content of nearly 4 ml/l, had penetrated in close to the bottom. In the intermediate Last updated: Apr 23, 2014

Last updated: Oct 26, 2021

Surface water temperatures were somewhat below normal in the whole investigated area. All nutrients showed concentrations typical for the season in the Skagerrak and Kattegat, while they in the Baltic Proper were above normal. The bottom water in the Arkona Basin was well oxygenated. Oxygen Last updated: Apr 23, 2014

Surface water temperatures were normal in the whole area. Salinity in the surface water were normal in the main part of the area, except for the Eastern Gotland Basin were it was below normal. Surface nutrient concentrations in the whole investigated area were normal for the season. Oxygen Last updated: Apr 23, 2014

/l i.e normal for the season. The autumn bloom was ongoing down to the thermocline, which was situated at depths between 15 and 30 meter. The halocline was located somewhat deeper. The Kattegat and the Sound Surface water temperatures varied between 13 and 14OC, which is normal for the season. In the Last updated: Apr 23, 2014

was found in the bottom water in the middle of March, the concentration had now decreased to 2.0 ml/l The oxygenated water had moved eastward to BY5 where bottom oxygen concentration had increased from 0.6 to 2.9 ml/L. Hydrogen sulphide was found in the Gotland Deep from 190 metres and downwards and Last updated: Apr 23, 2014

In a future climate, some extreme weather events are likely to occur more often, increasing the risk of natural hazards. For society to adapt, it needs quantitative information about the frequency and intensity of these hazards. Through tailor-made climate effect impact studies and improved Last updated: Nov 21, 2023